# Wall plug Fischer DuoHM 4 x 55 S PH TX Grey Torx 4 mm 55 mm

**URL:** https://aio.lv/en/product--fischer-572923--11163385
**Data updated:** 2025-12-30 18:26 (EET)
**Category:** Power Tools Accessories
**Manufacturer:** FISCHER
**Manufacturer code:** 572923
**EAN:** 4048962524017
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 20.99 €
**Prices and availability valid until:** 2026-08-01 23:59
**Price without VAT (21%):** 17.35 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--fischer-572923--11163385

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 17.07.2026 | free |
| Pickup points | 22.07.2026 | 1.89 EUR |
| Courier delivery to door | 22.07.2026 | 4.99 EUR |

## Summary description

The Fischer DuoHM 4 x 55 S PH TX wall plug is designed for secure fastening in various materials. It features a grey color, Torx screw type, and dimensions of 4 mm diameter and 55 mm length. The package includes 25 wall plugs and screws, making it suitable for multiple applications.

## Long description

The Fischer DuoHM 4 x 55 S PH TX wall plug is a single-length cavity anchor designed to cover common panel thicknesses from 9.5 to 30 mm. Combining a metal sleeve and a nylon base, it creates a secure connection for panel-type building materials and accepts metric screws, allowing repeated fastening and removal. The product comes in grey and is supplied with matching screws; the set is suitable for multiple fixings in interior panel installations.
Advantages
The DuoHM installs quickly and easily with a cordless screwdriver without additional setting tools, reducing installation time by up to 50% compared to conventional panel plugs. Its two-component design — a metal sleeve that folds and presses against the rear of the panel and a nylon base that knots in the material — provides high load capacity and reliable anchoring. One plug length covers a wide range of panel thicknesses (9.5–30 mm), increasing flexibility and reducing inventory. The metric internal thread allows the screw to be removed and reinserted multiple times, and the nylon anti-rotation lock prevents the plug from turning during installation and protects the panel surface. The narrow plug edge keeps the fixing concealed behind the mounted part.
Suitable for
Fastening fixtures to panel-type building materials (9.5–30 mm)
Interior fittings in plasterboard, MDF or similar panel substrates
Applications where repeated removal and reinstallation of screws is required
Key specifications
Brand: FISCHER
Model: DuoHM 4 x 55 S PH TX
Diameter: 4 mm
Length / usable for panel thicknesses: 55 mm / 9.5–30 mm
Drive type: Torx (TX) / PH compatible
Material: Nylon base body with metal sleeve
Pack quantity: 25 plugs with screws
MPN: 572923
EAN: 4048962524017
How to use
Drill a clearance hole appropriate for the 4 mm plug, insert the DuoHM fully into the panel until the narrow plug edge sits flush, then drive in the supplied metric screw using a Torx or compatible PH bit. The metal sleeve will fold behind the panel and the nylon base will knot into the material as the screw is tightened. The metric internal thread permits unscrewing and rescrewing for adjustments or maintenance.
Usage recommendations
Use a cordless screwdriver for faster installation and avoid over-torquing the screw to prevent damage to the panel. Select screws of the correct length for the thickness of the mounted component and check that the substrate falls within the 9.5–30 mm thickness range for optimal performance.

## Specifications

| Feature | Value |
|---|---|
| Product colour | Grey |
| Length | 55 mm |
| Diameter | 4 mm |
| Package type | Box |
| Screw type | Torx |
| Product type | Wall plug |
| Screw drive size | TX20 |
| Minimum drill hole depth | 55 mm |
| Maximum fixture thickness | 10 mm |
| Drill hole diameter | 8 mm |
| Minimum cavity depth | 45 mm |
| Screw anchors included in set | 25 x DuoHM 4 x 55 |
| Screws included in set | 25 x Screw M4 x 55 |
| Panel thickness (min) | 9.5 mm |
| Panel thickness (max) | 30 mm |

## FAQ

### How much does the Wall plug Fischer DuoHM 4 x 55 S PH TX cost, and is it available for purchase?

The price is 20.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 20 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 17.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All FISCHER products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized FISCHER service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/11163385/61925887_large.webp